Drive de Cartier Moon Phases watch, Manufacture self-winding mechanical movement, 1904-LU MC caliber. Steel case, dimensions 40 x 41 mm, thickness 12.15 mm, octagonal steel crown set with a faceted synthetic spinel. Silvered flinqué dial, Roman numerals, sword-shaped hands in blued steel. Sapphire crystal. Semi-matte black alligator skin strap, interchangeable 18 mm steel folding buckle. Moon phases at 6 o'clock, sapphire crystal case back. Waterproof up to 30 meters.